
Tumble Mailbag: Your Questions about Language, Sandwiches, and Cats - and Our Oldest Patrons!
19/12/2025 | 24min
We’re wrapping up 2025 with a final Mailbag episode, featuring some of our longest-running Patrons! Did you know, when you sign up to support Tumble on Patreon, you’ll get a personalized message from Marshall? And if you’ve been supporting us for years, we might just call you up to chat! We’ll meet our mysterious patron, MiloSloth and his family, and learn why they love to support the show. Plus, why is the English language so weird? Who made PB & J a combo? And do all cats hate getting wet? We have the answers. If you want to join Milo and support Tumble on Patreon, just go to patreon.com/tumblepodcast and pledge at whatever level you want! $1 or more gets you ad-free versions of the show, and $5 and up gets you a birthday shout out! Also don't forget about gift subscriptions, which make great last-minute holiday gifts! Want Tumble merch? Just go to tumblepodcast.dashery.com for t-shirts, mugs, hats, tote bags, and so much more.

The Minecraft Experiment
12/12/2025 | 24min
How do people learn — and how can a video game help us find out? In this episode, we meet cognitive scientist Charley Wu, who built the ultimate science “mod” in Minecraft! Journey into a video game world of science to discover how and why Charley used one of the world’s most popular games to follow his curiosity about how humans learn. Featuring a “braintrust” of kid Minecraft experts to explain the game to Lindsay and Marshall, and a song inspired by The Minecraft Movie. You can learn more about Charlie, and find a transcript of this episode on the blog on our website, sciencepodcastforkids.com. Support us on Patreon! You’ll get ad free episodes, special chances to be on the show, and of course, birthday shoutouts, when you sign up at the $5 level at patreon.com/tumblepodcast. Find out what we’re up to - from live events, merch drops, and more when you subscribe to our newsletter, on sciencepodcastforkids.com. You can also follow us on Instagram and subscribe to our YouTube. Try finding awesome shirts and other stuff on our merch store: tumblepodcast.dashery.com

The Science of Snot
28/11/2025 | 21min
Why do we have snot? Do animals get stuffy noses, too? We delve into the world of thick secretions with the help of Dani Rabiaotti, zoologist and author of “Believe it or Snot: The Definitive Field Guide to Earth’s Slimy Creatures.” You’ll find out why we make so much mucus, and meet the slimiest animals on the planet. Plus, you’ll discover why scientists study slime, even though it’s super gross. This is a rebroadcast of one of our favorite episodes from season 5, inspired by a question we recently got from our listener Harrison, who wondered why snot exists. Hopefully this answers the question for him! If you want to support Tumble with your holiday shopping, there are lots of ways to do it! Our merch store can be found at Tumblepodcast.dashery.com You can join our Patreon at patreon.com/tumblepodcast, or give a gift subscription at Patreon.com/tumblepodcast/gift. Or, click our affiliate link at bit.ly/tumblemel and get some awesome science kits while helping support the show!

What Sounds Do Fish Make?
14/11/2025 | 23min
What sounds do fish make? 🐟🎶 We know that cows say moo, and sheep say baa, but what do fish say? Come explore “Under the Sea” to discover the chorus of fish noises with help from fish ecologist Audrey Looby. We’ll find out how fish can be sneaky, loud, and even “slimy, grumpy cuties” (Audrey’s words) who go boop boop - and what they can tell us about life underwater. 🌊 You can learn more about Audrey, and find a transcript of this episode on the blog on our website, sciencepodcastforkids.com. Support us on Patreon! You’ll get ad free episodes, special chances to be on the show, and of course, birthday shoutouts, when you sign up at the $5 level at patreon.com/tumblepodcast. Find out what we’re up to - from live events, merch drops, and more when you subscribe to our newsletter, on sciencepodcastforkids.com. You can also follow us on Instagram and subscribe to our YouTube.

Are Ghosts Real?
29/10/2025 | 25min
Are ghosts real… or not? That’s what Lily wants to know. To find out, we talk to a real-life Ghostbuster and science historian Efram Sera-Shriar, who takes us on a journey back in time to when the world’s most famous scientists became ghost investigators: Sitting in on séances, inventing ghost-hunting devices, and exposing the tricks of “spirit photography.” Did you know, Thomas Edison made plans to create a phone to call ghosts? Learn all this and more when you join us on the trail of spooooky spirit science! You can learn more about Efram, and find a transcript of this episode on the blog on our website, sciencepodcastforkids.com. Support us on Patreon! You’ll get ad free episodes, special chances to be on the show, and of course, birthday shoutouts, when you sign up at the $5 level at patreon.com/tumblepodcast. Find out what we’re up to - from live events, merch drops, and more when you subscribe to our newsletter, on sciencepodcastforkids.com. You can also follow us on Instagram and subscribe to our YouTube. And don't forget to visit our merch store!



Tumble Science Podcast for Kids